Crude weapons, weary forces fuel deadly Aleppo stalemate

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Secretary of State John Kerry warns that Russia and Syria's government could face new economic sanctions over the war in Syria. Airstrikes continue to hit the city of Aleppo. Weekend talks on a ceasefire and access to humanitarian aid failed to reach an agreement. Elizabeth Palmer reports from Aleppo, where she learned about some of the crude weaponry that has caused so much destruction.